IBM Thinkpad A30 A30p A31 A31p Dock Manual

							1190 Security chip
NoteSome ThinkPad computers may have an embedded
security chip, which the customer ordered as an
option. If the ThinkPad computer you are servicing
has the security chip of FRU number 26P8084 and
26P8234, remove or reinstall it as follows:
Begin by checking the FRU number of the security
chip, and be sure to use the correct security chip
FRU for the computer. For the FRU numbers, see
“Parts list”on page 146.
For access, remove these FRUs, in order:
v“1010 Battery pack”on page 62
v“1020 Mini PCI adapter”on page 63
v“1030 Communication daughter card (CDC)”on page 66
v“1040 Backup battery”on page 73
v“1050 DIMM”on page 74
v“1060 Hard-disk drive”on page 75
v“1070 Ultrabay Plus device”on page 77
v“1080 Ultrabay 2000 device”on page 78
v“1100 Keyboard”on page 80
v“1110 Keyboard CRU insulator”on page 85
v“1120 Keyboard bezel”on page 87
v“1130 Hinge cover”on page 91
v“1160 Ultrabay Plus slot”on page 96
v“1180 Sub card for PC Card slot”on page 105
When installing:Make sure that the connector is firmly
attached.
Removing and replacing a FRU
ThinkPad A30, A30p, A31, A31p107 
						

							1200 LCD assembly
For access, remove these FRUs, in order:
v“1010 Battery pack”on page 62
v“1020 Mini PCI adapter”on page 63
v“1030 Communication daughter card (CDC)”on page 66
v“1040 Backup battery”on page 73
v“1060 Hard-disk drive”on page 75
v“1070 Ultrabay Plus device”on page 77
v“1080 Ultrabay 2000 device”on page 78
v“1100 Keyboard”on page 80
v“1110 Keyboard CRU insulator”on page 85
v“1120 Keyboard bezel”on page 87
v“1130 Hinge cover”on page 91
v“1160 Ultrabay Plus slot”on page 96
1
1
Step Screw (quantity) Torque

1M2.5×4.8 mm, nylon-coated (4) 0.392 Nm
(4 kgfcm)
(continued)
Removing and replacing a FRU
108MT 2652/2653/2654 
						

							2
When installing:Make sure that the connector
2is
firmly attached.
(continued)
Removing and replacing a FRU
ThinkPad A30, A30p, A31, A31p109 
						

							3
3
Removing and replacing a FRU
11 0MT 2652/2653/2654 
						

							Installation notice for the model with the wireless LAN
feature
Some models have cables for the wireless LAN antenna.
After you attach the LCD assembly, route the antenna
cables as shown in the following figure, and secure the
cables with new insulation tapes.
Removing and replacing a FRU
ThinkPad A30, A30p, A31, A31p111 
						

							1210 System board
For access, remove these FRUs, in order:
v“1010 Battery pack”on page 62
v“1020 Mini PCI adapter”on page 63
v“1030 Communication daughter card (CDC)”on page 66
v“1040 Backup battery”on page 73
v“1050 DIMM”on page 74
v“1060 Hard-disk drive”on page 75
v“1070 Ultrabay Plus device”on page 77
v“1080 Ultrabay 2000 device”on page 78
v“1090 I/O plate”on page 79
v“1100 Keyboard”on page 80
v“1110 Keyboard CRU insulator”on page 85
v“1120 Keyboard bezel”on page 87
v“1130 Hinge cover”on page 91
v“1140 Fan assembly”on page 92
v“1150 CPU”on page 94
v“1190 Security chip”on page 107
v“1160 Ultrabay Plus slot”on page 96
v“1160 Ultrabay Plus slot”on page 96
v“1180 Sub card for PC Card slot”on page 105
v“1200 LCD assembly”on page 108
There are several types of system board FRU. Begin by
checking the FRU number of the system board, and be
sure to use the correct system board FRU for the
computer. For the FRU numbers, see“Parts list”on
page 146.
ImportantIf the ThinkPad computer you are servicing has the
system board with the security chip of FRU number
26P8428 and 26P8430, mind the following:
vDo not remove the security chip from the
system board. If the security chip is removed by
accident, reinstall it on the system board
immediately. Then make sure that it is firmly fixed
on the system board and does not move easily.
vThe security chipcannotbe used with any other
system board.
vThe system boardcannotbe used with other
security chip.
vThe system boardcannotbe used without the
security chip.
vWhen you return the defective system board
FRU, you must check whether the security chip is
firmly attached to the system board. If it is not
embedded, it may not be covered under warranty.
Removing and replacing a FRU
11 2MT 2652/2653/2654 
						

							1
1
Step Screw (quantity) Torque

1M2.5×4.8 mm Small head,
nylon-coated (4)0.254 Nm
(2.5 kgfcm)
(continued)
Removing and replacing a FRU
ThinkPad A30, A30p, A31, A31p11 3 
						

							2
3
Step Screw (quantity) Torque

2M2.5×4.8 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)
(continued)
Removing and replacing a FRU
11 4MT 2652/2653/2654 
						

							4
5
a
When installing:Do as shown in figure
a.
6
Step Screw (quantity) Torque

6M2.5×4.8 mm, nylon-coated (1) 0.392 Nm
(4 kgfcm)
(continued)
Removing and replacing a FRU
ThinkPad A30, A30p, A31, A31p11 5 
						

							7
8
8
When installing:Make sure that both of the connectors
are firmly attached.
9
When installing:Attach the system board so that the two
small projections on the base cover fit
into the holes provided.
(continued)
Removing and replacing a FRU
11 6MT 2652/2653/2654